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- Question
A class of boys stands in a single line, One boy is 19th in order from both the ends, How many boys are there in the class ?
Options- A. 37
- B. 39
- C. 27
- D. 38
- Correct Answer
- 37
ExplanationNumber of boys in the class = (18 + 1 +18) = 37
- 1. Sam ranked 9th from the top and 38th from the bottom in a class. How many students are there in the class ?
Options- A. 45
- B. 47
- C. 46
- D. 48 Discuss
- 2. Nitin ranks 18th in a class of 49 students. What is rank from the last ?
Options- A. 31
- B. 18
- C. 32
- D. 19 Discuss
- 3. In a row of boys, If A who is 10th from the left and B who is 9th from the right interchange their positions, A becomes 15th from the left. How many boys are there in the row ?
Options- A. 23
- B. 31
- C. 27
- D. 28 Discuss
- 4. How many 4's are there preceded by 7 but not followed by 3? 5 9 3 2 1 7 4 2 6 9 7 4 6 1 3 2 8 7 4 1 3 8 3 2 5 6 7 4 3 9 5 8 2 0 1 8 7 4 6 3
Options- A. Four
- B. Three
- C. Six
- D. Five Discuss
- 5. How many such pairs of digits are there in the number 421579368 each of which has as many digits between them in the number as when they are arranged in ascending order?
Options- A. None
- B. One
- C. Two
- D. Three Discuss
- 6. Three persons A, B and C are standing in a queue. There are five persons between A and B and eight persons between B and C. If there be three persons ahead of C and 21 persons behind A, what could be the minimum number of persons in the queue?
Options- A. 41
- B. 40
- C. 28
- D. 27 Discuss
- 7. How many such digits are there in the number 7346285 which are as far away from the beginning of the number, as they will be when arranged in ascending order within the number?
Options- A. None
- B. one
- C. Two
- D. Three Discuss
- 8. If the 30th january 2003 was thursday, what was the day day on 2nd march, 2003?
Options- A. sunday
- B. thursday
- C. tuesday
- D. saturday Discuss
- 9. In a class of 180, where girls are twice the number of boys, Rupesh[a boy] ranked 34th from the top. If there are 18 girls ahead of Rupesh, how many boys are after him in rank?
Options- A. 45
- B. 44
- C. 60
- D. can't be determined Discuss
- 10. In a queue, Amrita is 10th from the front while Mukul is 25th from behind and Mamta is just in the middle of the two. If there be 50 persons in the queue. What position does Mamta occupy from the front ?
Options- A. 14th
- B. 16th
- C. 18th
- D. 20th Discuss
Time Sequence problems
Search Results
Correct Answer: 46
Explanation:
Number of students in class = (8 + 1 + 37) = 46
Correct Answer: 32
Explanation:
Number students behind the nitin in rank = (49 - 18) = 31
Nitin is 32nd from the last
Correct Answer: 23
Explanation:
Clearly, A?s new position is 15th from the left. But this is the same as B?s earlier position which is 9th from the right.
Correct Answer: Four
Explanation:
7 4 2
7 4 6
7 4 1
7 4 6
Only at these placees 4 is preceded by 7 but not followed by 3
Correct Answer: Three
Explanation:
Given Number: 4 2 1 5 7 9 3 6 8
Ascending order: 1 2 3 4 5 6 7 8 9
Hence the required pairs are 12, 49, 16
Correct Answer: 28
Explanation:
Three persons A, B, C can be arranged in a queue in six different ways, ie ABC, CBA, BAC, CAB, BCA, ACB. But since there are only 3 persons ahead of C, so C should be in front of the queue. Thus, there are only two possible arrangements, ie CBA and CAB.
We may consider the two cases as under:
Case I:
Clearly, number of persons in the queue = (3+1+8+1+5+1+21=) 40
Case II:
Number of persons between A and C
= (8 - 6) = 2
Clearly number of persons in the queue = (3+1+2+1+21) = 28
Now, 28 < 40. So, 28 is the minimum number of persons in the queue.
Correct Answer: Two
Explanation:
Given Number : 7346285
Ascending Number : 2345678
Answer is Two. Those digits are 3,4
Correct Answer: sunday
Explanation:
30th january, 2003 was thursday.
So, 6th, 13th, 20th, 27th february were all thursdays.
thus 2nd march, 2003 was 3 days after thursday, i.e. , sunday
Correct Answer: 44
Explanation:
No. of boys up to the 34th rank = 34-18 = 16
Total no of boys = 180x1/2+1 = 60
number of boys after the rank of Rupesh = 60 - 16 = 44
Correct Answer: 18th
Explanation:
Number of persons between Amrita and Mukul = 50 - (10 + 25) = 15. Since Mamta lies in middle of these 15 persons, so Mamta`s position is 8th from Amrita i.e. 18th from the front.
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